Island



. (NoM'odeL) L G. MASON.

TEMPLE FOR LOOMS FOR WEAVING TUBULAR FABRICS. No. 283,127. Patented Aug. 14, 1883. I

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UNITED J STATES "PATENT; OFFICE...

LOWELL c. MASON, or inovinnnon, RHODE ISLAND, Assienon TO THE SETH w. BAKER MANUFACTURING COMPANY, OF SAME PLACE.

I TEMPLE FOR LooMs FOR WEAVING TUBU-LAR FABRICS.

SPECIFICATION forming part of Letters Patent no. 283,127, dated August 14, 1883,

Application filed November 18, 1882. (No model.)

To all whom, it may concern: i

Be it known that I, LowELL G. MASON, of

e the city and county of Providence, and State of Rhode Island, have invented a new and useric in process of formation. tional plan of Fig. i 1. Fig. 3 is a partial view of the clamp.

ful Improvement in Temples for Looms for Weaving Tubular Fabrics and I hereby declare that the followingfis a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification. 1

This invention relates to looms for weaving tubular fabricssuch as are adapted to be cut up into endless beltsiin which the weft or filling is laid in the direction of the length of the belt and the warp is laid across the belt, the weft being laid continuously from end to end of the belt thus formed; and the invention consists in the construction of devices herein after pointed out and claimed.

Figurel is a sectiohalview of the lay and breast-beam of a loom, showing a tubular fab- Fig. 2 is a seei Fig. 4 is a perspective view of the stretcher.

In weaving tubular. fabrics of two or more pliessuch as are intended to be cut up into endless belts-the weft must be laid with sufficient tension to securean even strain on all the weft-threads in the different plies. This and the strain on'the woven fabric required to maintain the proper, tension on so large a .number of warp-threads draws the fabric together on the breast-beam and narrows the same. This narrowing causes such a strain on the lay that great power is required'to beat up the weft, and even with great power, in weaving an apron of the ordinary .length, the lay cannot completely beat up the weft, as the latter cannot be forcedinto the many compact ed warp-threads. Consequently fewer picks must be made than is desirable in such a fabric. The wear on the lay, as also on the warp, is objectionable independent of the loss of power. The fabric itself, when thus produced,

. is imperfect, and a straight endless belt cannot be so woven, as by the contraction the weftthreads are all bowed inone direction, and the i belt or apron is not straight and will not run true.

beat up each weft-thread. as laid.

. The object of the invention is to relieve the lay of all the extra strain, and thus save power,

the weft perfectlystraight, so as to produce a perfect belt or apron and enable the weaver to put more weft-threads to the inch than was heretofore possible.

In the drawings, A isthe lay; B, the breastbeam O, the warp-threads; D, the tubular fabric intended to form endless belts, as before described, woven of any desired width. E is arectangular stretcher, usually a board. F is a clamp consisting of two strips secured togetherat the ends by screws and nuts 9 g. f are rounded projections used in light fabric belts. These projections serve to compress the fabric at,a little distance from the edges and hold the main part of the fabric in a flat and extended position, which enables it to be drawn more easily from the stretcher. clamp F is placed in front of the breast-beani B, and may be secured to the breast-beam. The stretcher E usually a board of such length as will fit the interior of the tubular fabric and of such width that when resting against the clamp it will come nearly to the reed of the lay as it beats up the weft-is inserted into the fabric so as to maintain the width thereof, and thereby maintain the warp-threads in their proper relation to the lay, which will now fairly As the stretcher rests against the clamp, or as the clamp compresses the fabric so that the The stretcher cannot pass along with the fabric,

the stretcher is retained position. i

The elamp F, composed of the two strips securedtogether atthe ends by the screws g and nuts g, forms a simple, cheap, and effective always in its proper device for holding the stretcher in its proper place with relation to the Warp. The clamp can be quickly removed and replaced when a change in the length of beltis desirable.

I am aware that stretchers have been inserted between the warp-threads of a loom substantially as in my device. Various mechanisms-usually rollers-have been used to retain said stretcher in its proper relation to the Warp; but, so far as I know, no such device as With the projections f, all substantially as dethe clamp F has been used for thepurpose. scribed. 10 Having thus described my invention, 1 claim I11 Witness whereof I have hereunto set my as new and desire to secure by Letters Patenthand.

e 5 Thecombination,withthelayandthebreast- LOWVELL G. MASON.

beam, of the stretcher and the clamp F, con1- 'Witncsses: posed of parallel bars secured together at their J. A. MILLER, J12,

ends by screws 9 and nuts 9, and provided 7 M. F. BLIGH. 

